Improving dark energy constraints with high-redshift Type Ia supernovae from CANDELS and CLASH. - Salzano, Vincenzo; Rodney, Steven A.; Sendra, Irene; Lazkoz, Ruth; Riess, Adam G.; Postman, Marc; Broadhurst, Tom; Coe, Dan (Astronomy & Astrophysics / Astronomie et Astrophysique, 2013)